AOpen A70PF - System Block Diagram

A70PF(RX-777NS) 12 / 33
F.BLOCK DIAGRAM
200-200-P6NS Video Board DY
R,G,B CRT
Signal Cable
H,V sync HV
V H Focus
G1
G2
200-100-P6NS Main Board
80V
55V
15.5V
Power Cord 7.5V
AC100-240V
-13V
SMPS
I501
KA384
2
MCU
IC901
EMC6700
Horizontal Def.
O/P Stage
Q703,D709
Voltage
Regulator
D502,D508,
D510,D513,
D509
H/V
Processor
IC601
TDA9116/8
EEPROM
IC901
24LC08
Video PerAmp
OSD
IC201
LM1237
Video AMP
IC203
LM2469
Vertical
Booster
IC301
TDA8172
Booster
Q719,D719
DC –restore
IC202
LM2480
H-Driver
T702,Q702
Control
PCB
FBT
T701
Degauss
Dynamic Focus
T703,Q713